EP 1446764 B1 20071017 - MULTI-POINT TOUCH PAD
Title (en)
MULTI-POINT TOUCH PAD
Title (de)
TOUCHPAD FÜR SIMULTANEINGABEN
Title (fr)
CLAVIER TACTILE MULTI-POINT
Publication
Application
Priority
- IB 0204644 W 20021105
- US 821601 A 20011108
Abstract (en)
[origin: US2003085882A1] A multi-point touch pad device having a base with a top surface that defines a plane. A support layer has a top surface and a bottom surface. The top surface of the support layer contains a plurality of strain gauges that are disposed on the top surface of the support layer in a matrix configuration. A touch layer is disposed on top of the strain gauge matrix; the touch layer is joined to the top of the strain gauge matrix. Sensor wires connect the strain gauges to a processor which is programmed with an algorithm to measure the location and pressure of simultaneous, multiple touches.
IPC 8 full level
G06F 3/041 (2006.01); G06K 11/00 (2006.01); G06F 3/03 (2006.01); G09G 5/00 (2006.01)
CPC (source: EP KR US)
G06F 3/04144 (2019.04 - EP KR US); G06F 3/0416 (2013.01 - KR); G06F 2203/04104 (2013.01 - EP KR US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
US 2003085882 A1 20030508; US 6995752 B2 20060207; AT E376223 T1 20071115; CN 100353305 C 20071205; CN 1582453 A 20050216; DE 60223072 D1 20071129; DE 60223072 T2 20080724; EP 1446764 A1 20040818; EP 1446764 B1 20071017; ES 2295421 T3 20080416; JP 2005509221 A 20050407; JP 4194944 B2 20081210; KR 100971455 B1 20100722; KR 20040063142 A 20040712; WO 03041006 A1 20030515
DOCDB simple family (application)
US 821601 A 20011108; AT 02779824 T 20021105; CN 02822048 A 20021105; DE 60223072 T 20021105; EP 02779824 A 20021105; ES 02779824 T 20021105; IB 0204644 W 20021105; JP 2003542964 A 20021105; KR 20047006986 A 20021105